The Comma Operator's Deprecation Can't Come Soon Enough

[H. S. Teoh via Digitalmars-d]

On Tue, Jul 15, 2014 at 12:46:04PM -0700, H. S. Teoh via Digitalmars-d wrote:
> On Tue, Jul 15, 2014 at 07:16:17PM +0000, Martin Krejcirik via Digitalmars-d wrote:
> > On Tuesday, 15 July 2014 at 18:50:08 UTC, John Colvin wrote:
> > >and not just because I don't like the comma. I'd say it's generally
> > >bad practice to hide that write to `flag` inside the
> > 
> > You are right for the 'final' code, but the point of my example is,
> > that I can move the flag to another if and don't have to change
> > anything else.
> > 
> > Also an assignment is not allowed in a condition and without the comma
> > operator, it wouldn't be possible at all. That's way too restrictive.
> 
> Not true:
> 
> 	T* ptr;
> 	if ((ptr = getPtr()) !is null) {
> 		...
> 	}
[...]

Better yet, this syntax is supported:

	if (auto ptr = getPtr())
	{
		// ptr is not null here
	}


T

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